The difference between stress enteritis and ulcerative colitis is the external manifestations, the time of occurrence, the scope of the disease. 1. External manifestations: most of the stress enteritis is sudden nausea, vomiting, most of them are also accompanied by diarrhea, abdominal pain, fever; ulcerative colitis is mainly due to immune factors leading to colonic mucosal damage, ulceration. This causes diarrhea, constipation alternately, blood in the stool and other symptoms. 2. Time of occurrence: stress enteritis onset time is not fixed, often suddenly appear, such as anxiety, stress may appear; ulcerative colitis generally have a long history of chronic enteritis, the onset of more delayed, recurrent attacks. 3. The scope of the disease: stress enteritis may appear in a wide range of group morbidity or contact with the ingredients or toxic substances can also be suddenly caused; ulcerative colitis large-scale morbidity is relatively rare, will not be found in the contagious symptoms. If you have frequent abdominal pain, diarrhea or abnormal stools, you need to see a doctor for a digestive examination to determine the cause. Only then can the symptoms be treated.